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You searched for: subject:"What -- Landsat 7"
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[image]Araca River - Image provided by the Satellite Systems Branch.
Brazil’s Araca River is a tributary of the Negro River, which feeds into the Amazon.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on March 3, 1999. This is a false-color composite image made using shortwave infrared, near infrared, and green wavelengths. The image has also been sharpened using the sensor’s panchromatic band. Sensor: Landsat 7/ETM+. Data Start Date: 3/3/99.
Keywords: What -- Landsat 7
Downloads: 4
[image]Aleutian Clouds - Image provided by the Satellite Systems Branch
These cloud formations were seen over the western Aleutian Islands. Their color variations are probably due to differences in temperature and in the size of water droplets that make up the clouds.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on June 16, 2000. Sensor: Landsat 7/ETM+. Data Start Date: 6/16/00.
Keywords: What -- Landsat 7
Downloads: 9
[image]Ivory-billed Woodpecker Habitat - NASA image by Robert Simmon, based on data provided by the
Surrounded by farmland, crossed by an interstate highway, and located less than 75 miles from Arkansas’ capital and largest city, the 55,000-acre Cache River National Wildlife Refuge hardly seems wilderness enough to be harboring any secrets. But between 2004 and 2005, this small refuge within Arkansas’ “Big Woods” revealed just how valuable a treasure it hides in its secret cache: the ivory-billed woodpecker, which had been presumed extinct for 60 years.In this image from NASA’s Lands...
Keywords: What -- Landsat 7
Downloads: 13
[image]Dragon Lake, Siberia - Image provided by the Satellite Systems Branch
Nicknamed “Dragon Lake,” this body of water is formed by the Bratskove Reservoir, built along the Angara river in southern Siberia, near the city of Bratsk. This image was acquired in winter, when the lake is frozen.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on December 19, 1999. This is a natural color composite image made using blue, green, and red wavelengths...
Keywords: What -- Landsat 7
Downloads: 8
[image]Sierra Madre Oriental in Coahuila, Mexico - Image provided by the Satellite Systems Branch
This desolate landscape is part of the Sierra Madre Oriental mountain range, on the border between the Coahuila and Nuevo Leon provinces of Mexico.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on November 28, 1999. This is a false-color composite image made using shortwave infrared, infrared, and green wavelengths. The image has also been sharpened using the sensor’s panchromatic band...
Keywords: What -- Landsat 7
Downloads: 4
[image]Von Karman Vortices over Broutona - Image provided by the Satellite Systems Branch
These Von Karman vortices formed over the islands of Broutona, Chirpoy, and Brat Chirpoyev (“Chirpoy’s Brother”), all part of the Kuril Islands chain between Russia’s Kamchatka Peninsula and Japan.This image was acquired by the Landsat 7 Enhanced Thematic Mapper plus (ETM+) sensor on May 6, 2000. This is a false-color composite image made using infrared, near-infrared, and red wavelengths. The image has also been sharpened using the sensor’s panchromatic band...
Keywords: What -- Landsat 7
Downloads: 3
[image]Larsen Ice Shelf, Antarctica - Image courtesy Landsat 7 Science Team and NASA GSFC
Warmer surface temperatures over just a few months in the Antarctic can splinter an ice shelf and prime it for a major collapse, NASA and university scientists report in the latest issue of the Journal of Glaciology.Using satellite images of tell-tale melt water on the ice surface and a sophisticated computer simulation of the motions and forces within an ice shelf, the scientists demonstrated that added pressure from surface water filling crevasses can crack the ice entirely through...
Keywords: What -- Landsat 7
Downloads: 10
[image]Pothole Lakes in Siberia - NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of the University of Maryland’s .
When the Pleistocene Ice Age reached its peak around 22,000 years ago, continent-spanning glaciers covered large sections of North America and Eurasia like a sheet. As the Ice Age waned, the glaciers retreated. Occasionally large chunks of ice broke off from the glacier and became surrounded or even buried by soil and rock debris deposited by the melting ice sheet. Eventually, the blocks of ice also melted, leaving behind a depression in the ground...
Keywords: What -- Landsat 7
Downloads: 9
[image]Larsen Ice Shelf, Antarctica - Image courtesy Landsat 7 Science Team and NASA GSFC
Warmer surface temperatures over just a few months in the Antarctic can splinter an ice shelf and prime it for a major collapse, NASA and university scientists report in the latest issue of the <cite>Journal of Glaciology.</cite>Using satellite images of tell-tale melt water on the ice surface and a sophisticated computer simulation of the motions and forces within an ice shelf, the scientists demonstrated that added pressure from surface water filling crevasses can crack the ice ent...
Keywords: What -- Landsat 7
Downloads: 5
[image]Aftermath of World Trade Center Attack - Image courtesy at the
This true-color image was taken by the Enhanced Thematic Mapper Plus (ETM+) aboard the Landsat 7 satellite on September 12, 2001, at roughly 11:30 a.m. Eastern Daylight Savings Time.Visit the USGS Landsat 7 site for additional Landsat imagery, the NASA home page for photos from the space station and MODIS, and GlobalSecurity.org for images from other satellites. Sensor: Landsat 7/ETM+. Data Start Date: 9/12/01.
Keywords: What -- Landsat 7
Downloads: 12
[image]Landsat 7 - First Cloud-free Image of Yellowstone National Park - Image by Rich Irish, NASA GSFC
This image of Yellowstone Lake, in the center of Yellowstone National Park, was taken by Landsat 7 on July 13, 1999. Bands 5 (1.65µm),4 (.825µm), and 2 (.565µm) were used for red, green, and blue, respectively. Water appears blue/black, snow light blue, mature forest red/green, young forest pink, and grass and fields appear light green.Southwest of the lake is young forest that is growing in the wake of the widespread fires of 1988.For more information, see: Landsat 7 Fact Sheet Landsat 7 in ...
Keywords: What -- Landsat 7
Downloads: 9
[image]Drought in the Klamath River Basin - Images courtesy USGS and the Science Team
<font size="-2" face="helvetica, arial, sans">full-resolution imagesJune 14, 2000 (2.7 MB JPEG)June 17, 2001 (2.6 MB JPEG)</font>The Klamath Project dates back to 1903, when the Reclamation Service (now the Bureau of Reclamation, a branch of the U.S. Department of the Interior) investigated the possibility of converting rangeland, wetlands, and natural lakes into irrigated farmland. Construction began in 1906, the first water deliveries were made in 1907, and the project was complete...
Keywords: What -- Landsat 7
Downloads: 6
[image]Aleutian Clouds: Image of the Day - NASA -- Image provided by the edc.usgs.gov/ USGS EROS Data Center Satellite Systems Branch
These cloud formations were seen over the western Aleutian Islands. Their color variations are probably due to differences in temperature and in the size of water droplets that make up the clouds. This image was acquired by landsat7.usgs.gov/ Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on June 16, 2000.
Keywords: What -- Landsat 7
Downloads: 13
[image]San Francisco from Landsat 7 - Image courtesy EROS Data Center
On a rare fog free day Landsat 7 flew over San Francisco and produced this stunning true color image. You can easily see both man made structures—the Golden Gate Bridge, the Bay Bridge, Alcatraz, and Oakland International Airport—and natural features such as the Marin Headlands and the complex currents in San Francisco Bay.This image was provided by the EROS Data Center Landsat 7 Data Handling Facility Image Assessment System (IAS)...
Keywords: What -- Landsat 7
Downloads: 28
[image]MacDonnell Ranges - Image provided by the Satellite Systems Branch. This image is part of the ongoing Landsat series.
The MacDonnell Ranges are a band of mountains spanning Australia's arid interior. Only a portion of the Ranges can be seen in this image.This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on August 1, 2000. This is a false-color composite image made using shortwave infrared, infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band...
Keywords: What -- Landsat 7
Downloads: 3
[image]France's Southern Coast: Image of the Day - NASA -- Image provided by the edc.usgs.gov/ USGS EROS Data Center Satellite Systems Branch as part of the Earth as Art II image series
France's famed Provence region meets the Mediterranean as a gentle curve, intricately sculpted into sheltered bays and fringing peninsulas. The ancient port of Marseilles, the country's second largest city, nestles in the large bay at the lower left of the image. This image was acquired by landsat7.usgs.gov/ Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor.
Keywords: What -- Landsat 7
Downloads: 18
[image]Araca River: Image of the Day - NASA -- Image provided by the edc.usgs.gov/ USGS EROS Data Center Satellite Systems Branch.
Brazil's Araca River is a tributary of the Negro River, which feeds into the Amazon. This image was acquired by landsat7.usgs.gov/ Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on March 15, 2000. This is a false-color composite image made using shortwave infrared, near infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band.
Keywords: What -- Landsat 7
Downloads: 21
[image]Noril'sk, Northeast Siberia: Image of the Day - NASA -- NASA image created by Jesse Allen, Earth Observatory, using data obtained from the University of Maryland's glcf.umiacs.umd.edu/index.shtml Global Land Cover Facility. Image interpretation provided by Dr. Gareth Rees and Dr. Olga Tutubalina, Scott Polar Research Institute.
The Russian city of Noril'sk lies in Siberia at the western edge of the Putorana Plateau roughly 300 kilometers (180 miles) north of the Artic Circle. This city of 230,000 people has only one reason for existence in this isolated location: mining. Today, most ore comes from deep underground mines. The metals in these ores are mostly in the form of sulfur compounds. Processing the ore creates sulfur dioxide, which is vented into the air via smokestacks...
Keywords: What -- Landsat 7
Downloads: 24
[image]Yellowstone Park Boundary from Landsat 7 - Image by Rich Irish, NASA GSFC
The boundary between Yellowstone National Park and Targhee National Forest is clearly seen in this Landsat 7 image. On the right side of the vertical line running through the center of the image is mature forest located inside the park. In contrast, the forest to the left of the boundary is dominated by numerous clearcuts, shown as light orange/pink amidst the darker, greener forest. The stands of mature trees appear darker than the saplings, shrubs, and grasses growing in clearcuts because the ...
Keywords: What -- Landsat 7
Downloads: 10
[image]Sierra Madre Oriental in Coahuila, Mexico: Image of the Day - NASA -- Image provided by the edc.usgs.gov/ USGS EROS Data Center Satellite Systems Branch
This desolate landscape is part of the Sierra Madre Oriental mountain range, on the border between the Coahuila and Nuevo Leon provinces of Mexico. This image was acquired by landsat7.usgs.gov/ Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on November 28, 1999. This is a false-color composite image made using shortwave infrared, infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band.
Keywords: What -- Landsat 7
Downloads: 42
[image]Mayn River, Siberia: Image of the Day - NASA -- Image provided by the edc.usgs.gov/ USGS EROS Data Center Satellite Systems Branch. This image is part of the ongoing Landsat edcwww.cr.usgs.gov/l7dhf/ias_folder/images/artscene/artscene.html Earth as Art series.
The Mayn River, seen here with what is thought to be a portion of the Anadyr River, flows through the far northeastern corner of Siberia. This image was acquired by landsat7.usgs.gov/ Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on October 25, 2000. This is a natural color composite image made using red, green, and blue wavelengths. The image has also been sharpened using the sensor's panchromatic band.
Keywords: What -- Landsat 7
Downloads: 36
[image]Pothole Lakes in Siberia: Image of the Day - NASA -- NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of the University of Maryland's glcf.umiacs.umd.edu/index.shtml Global Land Cover Facility .
When the Pleistocene Ice Age reached its peak around 22,000 years ago, continent-spanning glaciers covered large sections of North America and Eurasia like a sheet. As the Ice Age waned, the glaciers retreated. Occasionally large chunks of ice broke off from the glacier and became surrounded or even buried by soil and rock debris deposited by the melting ice sheet. Eventually, the blocks of ice also melted, leaving behind a depression in the ground...
Keywords: What -- Landsat 7
Downloads: 25
[image]Landsat 7 - First Cloud-free Image of Yellowstone National Park : Image of the Day - NASA -- Image by Rich Irish, NASA GSFC
This image of Yellowstone Lake, in the center of Yellowstone National Park, was taken by Landsat 7 on July 13, 1999. Bands 5 (1.65microns),4 (.825microns), and 2 (.565microns) were used for red, green, and blue, respectively. Water appears blue/black, snow light blue, mature forest red/green, young forest pink, and grass and fields appear light green. Southwest of the lake is young forest that is growing in the wake of the widespread fires of 1988...
Keywords: What -- Landsat 7
Downloads: 39
[movies]Jakobshavn Glacier Calving Front Recession Updated (2001-2004) - NASA/Goddard Space Flight Center - Scientific Visualization Studio, and Goddard TV
Jakobshavn Isbrae holds the record as Greenland's fastest moving glacier and major contributor to the mass balance of the continental ice sheet. Starting in late 2000, following a period of slowing down in the mid 1990s, the glacier showed significant acceleration and nearly doubled its discharge of ice. The following imagery from the Landsat satellite shows the retreat of Jakobshavn's calving front from 2001 to 2004...
Keywords: What -- Landsat 7
Downloads: 27
[movies]Updated History of Jakobshavn Glacier Recession (1850-2004) - NASA/Goddard Space Flight Center - Scientific Visualization Studio, and Goddard TV
Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2003, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. For starters, as more ice moves from glaciers on land into the ocean, it raises sea levels...
Keywords: What -- Landsat 7
Downloads: 36
[image]Larsen Ice Shelf, Antarctica : Image of the Day - NASA -- Image courtesy Landsat 7 Science Team and NASA GSFC
Warmer surface temperatures over just a few months in the Antarctic can splinter an ice shelf and prime it for a major collapse, NASA and university scientists report in the latest issue of the Journal of Glaciology. Using satellite images of tell-tale melt water on the ice surface and a sophisticated computer simulation of the motions and forces within an ice shelf, the scientists demonstrated that added pressure from surface water filling crevasses can crack the ice entirely through...
Keywords: What -- Landsat 7
Downloads: 28
[image]Yellowstone Park Boundary from Landsat 7 : Image of the Day - NASA -- Image by Rich Irish, NASA GSFC
The boundary between Yellowstone National Park and Targhee National Forest is clearly seen in this Landsat 7 image. On the right side of the vertical line running through the center of the image is mature forest located inside the park. In contrast, the forest to the left of the boundary is dominated by numerous clearcuts, shown as light orange/pink amidst the darker, greener forest. The stands of mature trees appear darker than the saplings, shrubs, and grasses growing in clearcuts because the ...
Keywords: What -- Landsat 7
Downloads: 45
[image]Fires Scorch Oregon - Image provided by the Satellite Systems Branch.
In southwestern Oregon, the Florence Fire (north) and the Sour Biscuit Fire (south) continue to grow explosively. This image from the Landsat 7 Enhanced Thematic Mapper Plus was captured on July 29, 2002. The Florence Fire had grown to 50,000 acres and the Sour Biscuit Fire had grown to 16,000 acres. Numerous evacuation notices remain in effect.Thick smoke from the actively burning eastern perimeter of the Florence Fire is billowing southward and mingling with the Biscuit Fire smoke...
Keywords: What -- Landsat 7; Where -- Oregon
Downloads: 4
[image]Kakadu National Park, Australia - Image provided by the and the Australian ground receiving station teams
The Landsat image shown here covers parts of Kakadu National Park in Australia’s Northern Territory. Note the large black burn scar toward the lower righthand corner of this scene. The fire was still burning when this image was acquired — the active fire front appears as the thin line of reddish-orange pixels along the southern side of the burn scar. The associated smoke plume appears as the faint bluish pixels streaming westward in this false-color image.Kakadu National Park is one of the n...
Keywords: What -- Landsat 7; Where -- Australia
Downloads: 3
[image]Icefall on the Lambert Glacier - Image provided by the Satellite Systems Branch This image is part of the ongoing Landsat series.
The Lambert Glacier in Antarctica is the world’s largest glacier. The focal point of this image is an icefall that feeds into the Lambert glacier from the vast ice sheet covering the polar plateau. Ice flows like water, albeit much more slowly. Cracks can be seen in this icefall as it bends and twists on its slow-motion descent 1300 feet (400 meters) to the glacier below.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on December 2, 2000...
Keywords: What -- Polar; What -- Landsat 7
Downloads: 5
[image]Demini River - Image provided by the Satellite Systems Branch
A marsh-like area borders the Demini River in northwestern Brazil. The Demini eventually joins the Amazon River.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on March 15, 1999. This is a false-color composite image made using shortwave infrared, infrared, and red wavelengths. The image has also been sharpened using the sensor’s panchromatic band. Sensor: Landsat 7/ETM+...
Keywords: What -- Landsat 7; Where -- Brazil
Downloads: 3
[image]Rocky Mountain Fires - Image provided by the Satellite Systems Branch
This Landsat image of the area of the Hayman fire in Colorado was taken on July 16, 2002. Vegetation appears red and burn scar appears black in the false-color image (top). The lower image shows burn intensity, with green corresponding to least burned areas and red indicated most burned areas. Sensor: Landsat 7/ETM+.
Keywords: What -- Landsat 7; Where -- Colorado
Downloads: 4
[image]Hayman Fire and Others Scorch Western U.S. - Image provided by the Satellite Systems Branch
This Landsat image of the area of the Hayman fire in Colorado was taken in the summer of 2001. Vegetation appears red in the false-color image. Sensor: Landsat 7/ETM+. Data Start Date: 6/20/01.
Keywords: What -- Landsat 7; Where -- Colorado
Downloads: 5
[image]Pinnacles National Monument - NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the University of Maryland’s .
Steep rocky crags and towering cliffs rise out of the Gabilan Mountains east of Salinas Valley in Central California. Called Pinnacles National Monument, the landscape was formed as wind, water, and earthquakes carved away a 23-million-year-old volcano. The region was set aside as a National Monument on January 16, 1908, and now encompasses 24,514 acres.The park’s rugged landscape gives this Landsat-7 image a wrinkled appearance...
Keywords: What -- Landsat 7; Where -- California
Downloads: 3
[image]Rodeo and Chediski Fires in Arizona - Image provided by the Satellite Systems Branch.
This image from the Landsat Enhanced Thematic Mapper Plus (ETM+) shows the Rodeo-Chediski Fire on July 7, 2002. The result of two large fires that combined into a single blaze, the fire consumed almost half a million acres, and was the largest and most expensive fire in Arizona?s known history, costing more than $30 million before it was contained.In this false-color image, vegetation appears bright green and burned areas are deep red...
Keywords: What -- Landsat 7; Where -- Arizona
Downloads: 4
[image]First Landsat-7 Image - Image courtesy EROS Data Center
The first scene from Landsat 7 was acquired on Sunday, April 18. The scene includes the Sioux Falls and Yankton areas.Data reception at the EROS Data Center marks an important new responsibility for the staff at the Center and completes the original plan for locating the facility in the Sioux Falls area. For the first time in the 26 year history of the Center, direct reception from the Landsat system will be a reality.In addition to the data reception capability, Center staff will be responsible...
Keywords: What -- Landsat 7; What -- Landsat
Downloads: 8
[image]Nyiragongo Volcano before the Eruption - Image by Robert Simmon, based on data supplied by the NASA GSFC
Nyiragongo is an active stratovolcano situated on the Eastern African Rift; it is part of Africa’s Virunga Volcanic Chain. In a massive eruption that occurred on January 17, 2002, Nyiragongo sent a vast plume of smoke and ash skyward, and three swifly-moving rivers of lava streaming down its western and eastern flanks. Previous lava flows from Nyiragongo have been observed moving at speeds of up to 40 miles per hour (60 kph)...
Keywords: What -- Landsat 7; What -- Crater
Downloads: 6
[image]Mahale Mountains National Park - NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of the University of Maryland’s .
Mahale Mountains National Park lies on the shores of Lake Tanganyika in western Tanzania. The park has several unusual characteristics. First, it is one of only two protected areas for chimpanzees in the country. (The other is a nearby national park on the Gombe River made famous by the researcher Jane Goodall.) Another unusual feature of the park is that it is one of the very few in Africa that must be experienced by foot...
Keywords: What -- Landsat 7; Where -- Tanzania
Downloads: 3
[image]Fires Scorch Oregon - Image provided by the Satellite Systems Branch.
In southwestern Oregon, the Florence Fire (north) and the Sour Biscuit Fire (south) continue to grow explosively. This image from the Landsat 7 Enhanced Thematic Mapper Plus was captured on July 29, 2002. The Florence Fire had grown to 50,000 acres and the Sour Biscuit Fire had grown to 16,000 acres. Numerous evacuation notices remain in effect.Thick smoke from the actively burning eastern perimeter of the Florence Fire is billowing southward and mingling with the Biscuit Fire smoke...
Keywords: What -- Landsat 7; Where -- Oregon
Downloads: 3
[image]Rodeo and Chediski Fires in Arizona - Image provided by the Satellite Systems Branch.
This image from the Landsat Enhanced Thematic Mapper Plus (ETM+) shows the Rodeo-Chediski Fire on July 7, 2002. The result of two large fires that combined into a single blaze, the fire consumed almost half a million acres, and was the largest and most expensive fire in Arizona's known history, costing more than $30 million before it was contained.In this false-color image, vegetation appears bright green and burned areas are deep red...
Keywords: What -- Landsat 7; Where -- Arizona
Downloads: 3
[image]Nyiragongo Volcano Erupts in the Congo - Image by Robert Simmon, based on data supplied by the NASA GSFC
Nyiragongo is an active stratovolcano situated on the Eastern African Rift; it is part of Africa’s Virunga Volcanic Chain. In a massive eruption that occurred on January 17, 2002, Nyiragongo sent a vast plume of smoke and ash skyward, and three swifly-moving rivers of lava streaming down its western and eastern flanks. Previous lava flows from Nyiragongo have been observed moving at speeds of up to 40 miles per hour (60 kph)...
Keywords: What -- Landsat 7; What -- Crater
Downloads: 4
[image]Landsat 7 Views Mozambique Flooding - Image courtesy of Landsat 7 project
This pair of images from Landsat 7 shows the incredible amount of flooding that is currently occuring in Mozambique. A month of rains and two cyclones caused the Limpopo River to swell to 80km wide in places. At least several hundred people have been killed, and over a million have been forced from their homes.For more background information, see the Landsat 7 fact sheet and Floods: Using Satellites to Keep our Heads Above Water
Keywords: What -- Landsat 7; Where -- Mozambique
Downloads: 4
[image]Akpatok Island - Image provided by the Satellite Systems Branch
Akpatok Island lies in Ungava Bay in northern Quebec, Canada. Accessible only by air, Akpatok Island rises out of the water as sheer cliffs that soar 500 to 800 feet (150 to 243 m) above the sea surface. The island is an important sanctuary for cliff-nesting seabirds. Numerous ice floes around the island attract walrus and whales, making Akpatok a traditional hunting ground for native Inuit people.This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor on January 22,...
Keywords: What -- Landsat 7; Where -- Canada
Downloads: 3
[image]Nyiragongo Volcano Erupts in the Congo - Image by Robert Simmon, based on data supplied by the NASA GSFC
Nyiragongo is an active stratovolcano situated on the Eastern African Rift; it is part of Africa’s Virunga Volcanic Chain. In a massive eruption that occurred on January 17, 2002, Nyiragongo sent a vast plume of smoke and ash skyward, and three swifly-moving rivers of lava streaming down its western and eastern flanks. Previous lava flows from Nyiragongo have been observed moving at speeds of up to 40 miles per hour (60 kph)...
Keywords: What -- Landsat 7; What -- Crater
Downloads: 7
[image]Rodeo and Chediski Fires in Arizona - Image provided by the Satellite Systems Branch.
This image from the Landsat Enhanced Thematic Mapper Plus (ETM+) shows the combined Rodeo and Chediski Fires on June 29, 2002. The eastern part of the fire was the Rodeo Fire and the western was the Chediski Fire. The two large fires, one allegedly due to arson, and the other by a lost hiker, consumed almost half a million acres. The combined fire was the largest and most expensive fire in Arizona's known history, costing more than $30 million before it was contained.In this false-color image, v...
Keywords: What -- Landsat 7; Where -- Arizona
Downloads: 3
[image]Great Barrier Reef - Image provided by NASA Goddard Space Flight Center’s using data courtesy the Australian ground receiving station teams
Stretching more than 2,000 km (1,200 miles) along the Queensland coast, the Great Barrier Reef, was inscribed on the World Heritage List in October 1981. One of Australia’s greatest assets is the magnificent reef which runs along virtually the entire coast of Queensland. Considered one of the world’s natural wonders, it is the most extensive reef system and the biggest structure made by living organisms on Earth...
Keywords: What -- Earth; What -- Landsat 7
Downloads: 6
[image]Nyiragongo Volcano before the Eruption - Image by Robert Simmon, based on data supplied by the NASA GSFC
Nyiragongo is an active stratovolcano situated on the Eastern African Rift; it is part of Africa’s Virunga Volcanic Chain. In a massive eruption that occurred on January 17, 2002, Nyiragongo sent a vast plume of smoke and ash skyward, and three swifly-moving rivers of lava streaming down its western and eastern flanks. Previous lava flows from Nyiragongo have been observed moving at speeds of up to 40 miles per hour (60 kph)...
Keywords: What -- Landsat 7; What -- Crater
Downloads: 6
[image]Malaspina Glacier, Alaska - Image provided by the Satellite Systems Branch. This image is part of the ongoing Landsat series.
The tongue of the Malaspina Glacier, the largest glacier in Alaska, fills most of this image. The Malaspina lies west of Yakutat Bay and covers 1,500 sq mi (3,880 sq km).This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on August 31, 2000. This is a false-color composite image made using infrared, near infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band...
Keywords: What -- Landsat 7; Where -- Alaska
Downloads: 4
[image]Tornado Hits Siren, Wisconsin - Images courtesy USGS
<font size="-2" face="helvetica, arial, sans">high resolution images: May 18, 2001 (330 KB) June 19, 2001 (290 KB)</font>A destructive tornado hit the tiny town of Siren, Wisconsin (population 900), on the evening of June 18, 2001. Travelling from west to east, the twister killed three people, destroyed homes, uprooted trees, and flattened crops. The above true-color images show the effects of the tornado as seen from space...
Keywords: What -- Landsat 7; Where -- Wisconsin
Downloads: 7
[image]High Resolution Views of Fire near Reno - Image courtesy USGS and science team
<font size="-2" face="helvetica, arial, sans"> True-color hi-res image Infrared hi-res image</font>A large wildfire still burns in the Sierra Nevada Mountains, roughly 15 miles west of Reno, Nevada. More than 2,000 fire personnel have been dispatched to battle the blaze, which is estimated to be about 40 percent contained as of June 22.This pair of images over the wildfire was produced using Landsat 7 Enhanced Thematic Mapper Plus (ETM+) data acquired over the region on June 19, 200...
Keywords: What -- Landsat 7; Where -- Nevada
Downloads: 4
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